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Jm Fab intake running main wiring harness under or over?

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AL92

15+ Year Contributor
933
4
Dec 12, 2003
regina, SK, Canada
Anyone run their main harness with the injectors and all that on it under their jm fab not over it like stock. I think it looks so much neater and cleaner to have it under the pretty intake runners but was wondering if have to maybe lengthen some of the stock wiring if do that. There are no mounting holes of course on the jm fab so it would just lay over the manifold or guess could maybe run it near the back firewall?

So lets hear what you guys are doing with your harness.I would think be same on magnus or other smim intakes also.
 
I ran mine under and the ran each injector wire up in between the runners. You can see what it looks like from this pic.
 

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I have the main harness that runs along the firewall pushed down and out of sight. The wires that run to the injectors have had the black plastic thing holding them together taken off, black electrical taped together, and pushed down near the runners. It looks real clean. I'll snap some pics a bit later.
 
Well I have to say if it reaches and can be underneath then underneath it is..looks cleaner to me not on top..
 
That looks like sex. I'm just about to install mine, I was wondering how hard it was to get the bottom bolts off on the stock intake mani. (reaching and space wise).

Did you guys have to cut your intercooler pipes and rotate the flange to fit onto the manifold?

Did you have problems with boost leaks with the jm fab intake?
 
Byrd said:
That looks like sex. I'm just about to install mine, I was wondering how hard it was to get the bottom bolts off on the stock intake mani. (reaching and space wise).

Did you guys have to cut your intercooler pipes and rotate the flange to fit onto the manifold?

Did you have problems with boost leaks with the jm fab intake?

If you have already taken off the bracket on the back of the stock intake manifold you are set. It will be a piece of cake to get the bolts out. If the bracket is still there i would take it off to make life easier. I had to cut about 1 inch off of my intercooler pipes. As far as having boost leaks I haven't had any problems with the manifold at all. I run alot of boost through it and boost leak test the car on a somewhat regular basis.
 
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